Headers

[Jon Mello]

Doug Thorley (Doug's Headers) catalog from 1972 showing various part numbers.  Looks like it is just numbers at that point, no letter prefix.  Thorley NOS headers have been found to be a shade that could be considered "salmon orange".

[Jon Mello]

NOS Doug Thorley header examples showing the original color from the late '60s to early '70s time frame.  Also showing Thorley decal down at the collector flange area which you wouldn't see on a car that had been run for any length of time.